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Large Scale Structure in an Era of Precision CMB Measurements

Cooray, Asantha (2002) Large Scale Structure in an Era of Precision CMB Measurements. In: Dark Matter in Astro- and Particle Physics. Springer , Berlin, pp. 119-130. ISBN 978-3-642-62920-4. https://resolver.caltech.edu/CaltechAUTHORS:20200225-114300172

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Abstract

The advent of high signal-to-noise cosmic microwave background (CMB) anisotropy experiments now allow detailed studies on the statistics related to temperature fluctuations. The existence of acoustic oscillations in the anisotropy power spectrum is now established with the clear detection of the first, and to a lesser confidence the second and the third, peak. Beyond the acoustic peak structure associated with CMB photon temperature fluctuations, we study the possibility for an observational detection of oscillations in the large scale structure (LSS) matter power spectrum due to baryons. We also suggest a new cosmological test using the angular power spectrum of dark matter halos, or clusters of galaxies detected via wide-field surveys of the large scale structure. The standard rulers of the proposed test involve overall shape of the matter power spectrum and baryon oscillation peaks in projection. The test allows a measurement of the angular diameter distance as a function of redshift, similar to the distance to the last scattering surface from the first acoustic peak in the tempetaure anisotropy power spectrum. The simultaneous detection of oscillations in both photons and baryons will provide a strong, and a necessary, confirmation of our understanding related to the physics during the recombination era. The proposed studies can be carried out with a combined analysis of CMB data from missions such as the MAP and the large scale structure data from missions such as the DUET.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/978-3-642-55739-2_12DOIArticle
https://arxiv.org/abs/astro-ph/0204090arXivDiscussion Paper
https://rdcu.be/b2aWbPublisherFree ReadCube access
ORCID:
AuthorORCID
Cooray, Asantha0000-0002-3892-0190
Additional Information:© 2002 Springer-Verlag Berlin Heidelberg. We thank Zoltan Haiman, Wayne Hu and Dragan Huterer for collaborative work discussed in this article. The author is grateful to the DUET science team for providing him an opportunity to contribute aspects related to a combined CMB/large scale structure data analysis. The author acknowledges support from the Sherman Fairchild foundation and the Department of Energy and apologizes, before hand, for any missed references.
Group:TAPIR
Funders:
Funding AgencyGrant Number
Sherman Fairchild FoundationUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:Power Spectrum; Dark Energy; Cosmic Microwave Background; Large Scale Structure; Dark Matter Halo
Record Number:CaltechAUTHORS:20200225-114300172
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200225-114300172
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101537
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Feb 2020 20:14
Last Modified:25 Feb 2020 20:14

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